2cos[(C+D)/2]sin[(C-D)/2] is equal to 1). sinC + sinD2). sinC - sinD3). cosC - cosD4). cosC + cosD
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1. In a class of 66 students there are 33 girls. The average weight of these girls is 61 Kg and average weight of the full class is 66 kgs. What is the average weight of the boys of the class?
2. Of the four numbers whose average is 91, the first is 3/10 times the sum of other three. The first number is:
3. The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.The villager cried __________ his voice for help
4. Suez Canal connects
5. In the following s, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the 'No error' option.If you permit me to speak the truth (A) / I shall state without hesitation (B) / that you have done a mistake (C) / No Error (D)
6. Which of the following equations has the sum of its roots as 5?
7. How many bits does an IP address contain?
8. What is the approximate circumference of earth?
9. A volcano that is not expected to erupt again is called
10. A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to No improvement.He started at the bottom rung of the ladderand then gained success.
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